Title (en)

METHOD AND APPARATUS FOR MAKING CODE BOOK, VECTOR QUANTIZING DEVICE, DEVICE AND METHOD FOR DATA COMPRESSION, DEVICE AND METHOD FOR DATA DECOMPRESSION, SYSTEM FOR DATA COMPRESSION/DECOMPRESSION

Title (de)

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES CODEBUCHES, EINER VEKTORQUANTISIERUNGSVORRICHTUNG, EINER VORRICHTUNG UND EINES VERFAHRENS ZUR DATENKOMPRIMIERUNG, EINER VORRICHTUNG UND EINES VERFAHRENS ZUR DATENDEKOMPRIMIERUNG, EINES SYSTEMS FÜR DATENKOMPRIMIERUNG/DEKOMPRIMIERUNG

Title (fr)

PROCEDE ET APPAREIL PERMETTANT DE CONSTITUER UNE TABLE DE CODAGE, DISPOSITIF DE QUANTIFICATION DE VECTEUR, DISPOSITIF ET PROCEDE DE COMPRESSION DE DONNEES, DISPOSITIF ET PROCEDE DE DECOMPRESSION DE DONNEES, SYSTEME DE COMPRESSION/DECOMPRESSION DE DONNEES

Publication

EP 1087533 A1 20010328 (EN)

Application

EP 99913695 A 19990419

Priority

• JP 9902050 W 19990419
• JP 12428398 A 19980417
• JP 18951698 A 19980703
• JP 20836598 A 19980723
• JP 30980898 A 19981030

Abstract (en)

With reference to one or more pieces of data (for example, the data at the left end in a block of 4 x 4 pixels) in a data string constituting one code vector in a code book, a code vector is generated by giving a value which increases in an increment of a predetermined value from the reference data value K to each piece of the other data in the block. A greatly versatile code book can be made at least for data on a pattern, for example, a face image, whose data value gradually varies by a small change. <IMAGE> <IMAGE>

IPC 1-7

H03M 7/30; H04N 1/41; H04N 7/28

IPC 8 full level

G06T 9/00 (2006.01); H03M 7/30 (2006.01); H04N 1/41 (2006.01); H04N 7/28 (2006.01)

CPC (source: EP)

G06T 9/008 (2013.01); H03M 7/3082 (2013.01); H04N 19/94 (2014.11)

Citation (search report)

See references of WO 9955007A1

Designated contracting state (EPC)

DE FR GB NL SE

DOCDB simple family (publication)

WO 9955007 A1 19991028; EP 1087533 A1 20010328

DOCDB simple family (application)

JP 9902050 W 19990419; EP 99913695 A 19990419